See mouse button input for how these are used. 
◆ GLFW_MOUSE_BUTTON_1
      
        
          | #define GLFW_MOUSE_BUTTON_1   0 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_2
      
        
          | #define GLFW_MOUSE_BUTTON_2   1 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_3
      
        
          | #define GLFW_MOUSE_BUTTON_3   2 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_4
      
        
          | #define GLFW_MOUSE_BUTTON_4   3 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_5
      
        
          | #define GLFW_MOUSE_BUTTON_5   4 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_6
      
        
          | #define GLFW_MOUSE_BUTTON_6   5 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_7
      
        
          | #define GLFW_MOUSE_BUTTON_7   6 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_8
      
        
          | #define GLFW_MOUSE_BUTTON_8   7 | 
      
 
 
◆ GLFW_MOUSE_BUTTON_LAST
◆ GLFW_MOUSE_BUTTON_LEFT
◆ GLFW_MOUSE_BUTTON_RIGHT
◆ GLFW_MOUSE_BUTTON_MIDDLE